Home >                  	Term: polianite  
polianite
A steel-gray dioxide of manganese, MnO2, crystallizing in the tetragonal system. It is distinguished from pyrolusite by its hardness and anhydrous character.
- Part of Speech: noun
- Industry/Domain: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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 Creator
- ed.young
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(Milwaukee, United States)

